Torpedo



May 18 1926.

E. A. EWING TORPEDO Filed Feb. 1, 1923 Patented May 18 192 6.

EDGAR A. EWING, or CHICAGO, ILLINOIS,

ASSIGNOR TO THE GOVERNMENT OF THE UNITED STATES REPRESENTED BY THE SECRETARY OF THE NAVY.

TORPEDO.

Ap lication filed February 1, 1923.

This invention relates to improvements in torpedoes and more particularly to an apparatus adapted to be associated with the practice-head of a torpedo for making a signal, preferably audible, whereby the torpedo may be located if, for any reason, it should stop and sink during its trial run.

One of the objects of the present invention is to provide a simple and practical mechanism adapted to be installed in the practice head of a torpedo for producing either a continuous or intermittent sound as desired during the entire run and for a relatively long time thereafter whereby the location of the torpedo may be determined with any one of the several direction indicator submarine sig nals now in general use in the Navy.

A. further object is to provide a small compact inexpensive device of the above character which will be reliable and efiicient in use and operation.

Other objects will be in part obvious and in part hereinafter pointed out in connection with the following analysis of this invention when taken in connection with the accompanying sheet of drawings illustrating one of various possible embodiments of the invention.

In this drawing,

Figure 1 is an elevational view partly in section showing the apparatus as installed in a torpedo practice-head.

Figure 2 is a diagrammatic view showing the electrical connection and arrangement of the various parts.

Figure 3 is a sectional view taken substantially along the line 3/3 of Figure 1.

Figure 4 is a sectional view taken substantially on the line 4/4c, Figure 1.

Figure 5 is a top plan view of the mechanism shown in Figure 1.

Figure 6 is a detail sectional view taken on the line 6/6, Figure 5.

Referring now to this drawing in detail, 11 indicates a rubber nipple adapted to be connected to astandard marine receiver 12 having associated therewith a high frequency tuned buzzer 18, a transformer 14 and condenser 15 connected therewith, a source of current is indicated by batteries 16 and 17 which are preferably of standard dry cell type, a switch 18 is provided for controlling the circuit as will hereinafter be explained and an annneter may be inserted Serial No. 616,400.

in the circuit at 20 if so desired for any reason.

This entire mechanis'n'i is preferably enclosed within a cylinder 21 as indicated in Figure 1 and the entire device passed through opening 22 in the shell of the practice-head into a well 23 and sealed in place by threaded ring 2 1. All of these parts are preferably of standard equipment and can be purchased in the open market and assembled by any one skilled in the art.

In view of the wiring diagram shown in Figure 2, the push button 18 is preferably located outside of the practice-head for the purpose of testing and a small slide plate may be placed adjacent to the button which allows the contact to be made permanent if so desired. This switch is, however, preferably closed hydrostatically when the torpedo sinks to a predetermined depth and in this manner the batteries are conserved because the circuit is automatically broken when the torpedo is taken out of the water after its practice run. This, however, is a more detail and can be varied to suit the desires of those operating thesame. Likewise the type of buzzer may be varied either to the intermittent or the continuous type. mittent buzzer has certain desirable features in that the sound can be more easily picked up and distinguished from the steady vibra tion produc d by a distant steamer.

It is believed to be unnecessary to go into the type of receivers cooperating with this mechanism, as any one of several types may be used. That type generally known to the service as C tube is perhaps more accurate. This instrument merely comprises a T- shaped tube having rubber bulbs at the ends of the cross of the T and the base of the T is provided with ear attachments and by r0- tating the T to the right or to the left the proper direction may be easily and quickly determined by the operator.

It will thus be seen that the present invention provides a simple and practical mechanism which may be inexpensively manufactured and assembled and conveniently carried by the practice-head of torpedoes now in general use without material alteration and disarrangement of the other members carried thereby.

Without further analysis, the foregoing will so fully reveal the gist of this inven- The intertion that others can by applying current knowledge readily adapt it for Various applications without omitting certain features that, from the standpoint" of the prior art,- fairly constitute essential characteristics of thegeneri-c or specific aspects of this invention, and, therefore, such adaptations should and are intended to be comprehended within the meaning and range of equivalency oi the the circuit through said signal means when the torpedo reaches a predeteri'nined depth.

2. In a torpedo, in combination, a practicehead, electrical means for producing an andible signal, marine transmitting mechanism associated therewith and a hydrostatically actuated switch for closing the circuit through said signal means whenthe torpedo reaches apredetermined depth.

3. In a torpedo, in combination, a practicehead, an electrically actuated audible signal mechanism including a transformer and condenser, a radio buzzer connected therewith, a marine receiver, means whereby said audible signal is transmitted to the water in which the torpedo is placed and a hydrostaticallyactuated switch for closing the circuit through said signalineans when the torpedo reaches a predetermined depth,

Signed at Chicago, Illinois, this 7th day of September, 1922.

7 EDGAR A. EXVING. 

